Transient Flow Field Temperature Profile Measurement Using Rotational Raman Spectroscopy
The application of a pulsed laser and low-light-level television system for obtaining the frequency and spatial distribution of pure rotational Raman scattering from a transient gas flow is presented. The system has a temporal resolution of less than one millisecond and spatial resolution better than 0.1 millimeters. Examples of temperature determinations of hydrogen and deuterium are given. Plans are to use the system to take temperature profiles across a transient gas jet.
KeywordsImage Intensifier Line Pair Ruby Laser Rayleigh Line Collection Optic
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- 3.G. F. Widhopf and S. Lederman, “Specie Concentrations Measurements Utilizing Raman Scattering of a Laser Beam,” Polytechnic Institute of Brooklyn, Department of Aerospace Engineering and Applied Mechanics, PIBAL Report No. 69–46 (1969).Google Scholar
- 4.J. A. Salzman, W. J. Masica, and T. A. Coney, NASA TN D-6336 (1971).Google Scholar